will you deliver a C++51? (No content)

"Tasking already offers a ec++ compiler for the C166-Family..."

You might want to benchmark the Tasking C++ compiler before jumping in. An evaluation version can be had. My results caused me to buy the Keil tools.

Classes, inheritence, polymorhism;
For code which would be more smoothly handled in C++ (screen object handling, com port interfaces, ...) I put in a structure ID member and have a 'this' pointer argument passed in the functions. Is it more work, yes, but at least I see the code and run-time overhead and can eliminate it when it isn't needed.

Operator overloading;
Most compilers I have studied handle operator overloading as a function call, possibly using indirect function call tables for the simplest types. The overhead can make simple addition a deadly time-hog.

Templates;
In my opinion, templates are the single largest cause of bloated code which is anathema to embedded programming with it's space and time constraints and reliablity requirements.

PS. To include a 'this' pointer;

typedef struct CPP_STRUCT {
  struct CPP_STRUCT *p_This;
  ...
  int  (*member_Fcn)(struct CPP_STRUCT *p_This);
} CPP_STRUCT;

"Tasking already offers a ec++ compiler for the C166-Family..."

You might want to benchmark the Tasking C++ compiler before jumping in. An evaluation version can be had. My results caused me to buy the Keil tools.

Classes, inheritence, polymorhism;
For code which would be more smoothly handled in C++ (screen object handling, com port interfaces, ...) I put in a structure ID member and have a 'this' pointer argument passed in the functions. Is it more work, yes, but at least I see the code and run-time overhead and can eliminate it when it isn't needed.

Operator overloading;
Most compilers I have studied handle operator overloading as a function call, possibly using indirect function call tables for the simplest types. The overhead can make simple addition a deadly time-hog.

Templates;
In my opinion, templates are the single largest cause of bloated code which is anathema to embedded programming with it's space and time constraints and reliablity requirements.

PS. To include a 'this' pointer;

typedef struct CPP_STRUCT {
  struct CPP_STRUCT *p_This;
  ...
  int  (*member_Fcn)(struct CPP_STRUCT *p_This);
} CPP_STRUCT;